| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not at all well | 26 |
1.6%
|
| 2 | Not very well | 272 |
16.7%
|
| 3 | Pretty well | 378 |
23.2%
|
| 4 | Very well | 949 |
58.4%
|
| r | 1 |
0.1%
|